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NYC DOB record · B00643679-I1

449 6 Street

449 6 Street, Brooklyn, NY 11215

Alteration filing in Park Slope, Brooklyn. The latest DOB status is loc issued.

DOB has issued a Letter of Completion, which records that the work in this filing is finished. What every status means

Recorded as completedAlteration filing

NYC Department of Buildings · w9ak-ipjd · accessed Sep 21, 2026 · Verify the source row

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NYC DOB RECORD · B00643679-I1

449 6 Street

Brooklyn, NY 11215

Alteration filing · status dated Nov 3, 2025

Current record
Recorded as completed
Proposed scale
4 stories
Dwelling units
2
Filing data portrait

A page-specific reading of the filing status, location and stated scale. Values are drawn from the cited DOB record.

Address record at a glance

What is filed at this address?

NYC DOB lists filing B00643679-I1 as a alteration filing at 449 6 Street, Brooklyn, NY 11215. Its latest published status category is Recorded as completed, dated Nov 3, 2025. The filing records 4 proposed stories and 2 proposed dwelling units.

A filing or approval does not by itself confirm that work is underway. Proposed details may change in later DOB records.
Filing type
Alteration filing
Latest status
Recorded as completed
Latest status date
Nov 3, 2025
Proposed scale
4 proposed stories and 2 proposed dwelling units
Applicant of recordSee the 22 filings that name Joseph K. Blum CO. LLP
FiledMay 7, 2024
Current recordRecorded as completed
Proposed scale4 stories
Recorded cost$88,001

What the filing says

A public-record reading of the proposed work.

Foundation and Structural work in conjunction with Renovation and enlargement of existing two-family residence on floors BAS, 001; under B00640621-I1. There is to be no change of use, occupancy, egress. ZD1 accepted under ALTCO B00640621-I1

Street Futures classifies this record as a alteration filing based on the filing type and work flags published by the Department of Buildings. This classification helps organize the map; it does not add scope that is absent from the DOB record.

The lot this filing sits on

What is already here?

The lot holds a 3-story two-family home built in 1901, on a 2,000 sq ft lot.

Built
1901
Floors
3
Residential units
2
Building type
Two-family home
Land use
One and two family homes
Zoning district
R6B
Lot area
2,000 sq ft
Building area
3,726 sq ft

Lot facts come from NYC Department of City Planning, Primary Land Use Tax Lot Output (PLUTO) (64uk-42ks), accessed Sep 21, 2026. They describe the tax lot, not this filing.

Recorded timeline

Dates published by the Department of Buildings.

  1. Application filed

    DOB received filing B00643679-I1.

    01
  2. Application approved

    The application reached an approved status in the DOB record.

    02
  3. First permit date recorded

    DOB lists a first permit date. This does not by itself confirm current construction activity.

    03
  4. Current status updated

    The latest recorded filing status is “LOC Issued.”

    04
  5. Sign-off date recorded

    DOB lists a sign-off date for this filing.

    05

For scale: half of DOB filings are permitted within 20 days of being filed and a quarter take longer than 4 months, measured across 66,747 filings that carry both dates. How long a permit takes, by work type and borough

Scope and identifiers

The details used to match this filing.

Where a field reads “empty in the source”, the city published this filing without that value. It is not an omission on our side, and nothing here is inferred to fill a gap.

DOB filing number
B00643679-I1
BIN
3021514
BBL
3009890059
Review type
Standard Plan Examination
Existing stories
4
Proposed stories
4
Existing dwelling units
2
Proposed dwelling units
2
General constructionStructural workFoundation workEarthwork

Nearby records

Other verified filings in this part of the city.